OpenSSL::SSL::SSLError when running Rails API locally

[belgoros]

I started a Rails API app with falcon serve -p 3000 and got:

1m43s    error: <Async::Task:0x3fe3dc8012e0 failed> [pid=9900]
               |   OpenSSL::SSL::SSLError: SSL_accept returned=1 errno=0 state=error: http request
               |   → /Users/Serguei/.rvm/gems/ruby-2.6.1/gems/async-io-1.23.1/lib/async/io/generic.rb:208 in `accept_nonblock'
               |     /Users/Serguei/.rvm/gems/ruby-2.6.1/gems/async-io-1.23.1/lib/async/io/generic.rb:208 in `async_send'
               |     /Users/Serguei/.rvm/gems/ruby-2.6.1/gems/async-io-1.23.1/lib/async/io/generic.rb:54 in `block in wrap_blocking_method'
               |     /Users/Serguei/.rvm/gems/ruby-2.6.1/gems/async-io-1.23.1/lib/async/io/ssl_socket.rb:139 in `block in accept'
               |     /Users/Serguei/.rvm/gems/ruby-2.6.1/gems/async-1.18.0/lib/async/task.rb:204 in `block in make_fiber'

What am i missing?

macOS 10.14.5
Ruby 2.6.1.
Rails 5.2.2

Maybe related to #59 ?

[belgoros]

It will work when binding to a specific host/port as follows:

falcon serve -b http://localhost:3000

Is it a right way to go ?

[ioquatix]

falcon uses https by default, you are tying in http://

Browsers won't use http/2 over http, so that's why https is the default.